Fair Value Measurements

6 Months Ended

Jun. 30, 2011

Fair Value Measurements [Abstract]

Fair Value Measurements

(12) Fair Value Measurements

Financial assets and financial liabilities measured at fair value on a recurring basis are as follows:

	Fair Value Measurements at Reporting Date Using
			Quoted Prices in		Significant Other		Significant
	Balance		Active Markets for		Observable		Unobservable
	as of		Identical Assets		Inputs		Inputs
As of June 30, 2011	6/30/2011		(Level 1)		(Level 2)		(Level 3)
Investment securities available-for-sale:
Obligations of U.S. government agencies	$	1,012,628	$	—	$	1,012,628	$	—
U.S. agency residential mortgage-backed securities		860,373		—		860,373		—
Private residential mortgage-backed securities		863		—		863		—
Mortgage servicing rights		14,607		—		14,607		—
Derivative liability contract		122		—		—		122

	Fair Value Measurements at Reporting Date Using
			Quoted Prices in		Significant Other		Significant
	Balance		Active Markets for		Observable		Unobservable
	as of		Identical Assets		Inputs		Inputs
As of December 31, 2010	12/31/2010		(Level 1)		(Level 2)		(Level 3)
Investment securities available-for-sale:
Obligations of U.S. government agencies	$	953,420	$	—	$	953,420	$	—
U.S. agency residential mortgage-backed securities		831,860		—		831,860		—
Private residential mortgage-backed securities		1,055		—		1,055		—
Mortgage servicing rights		13,694		—		13,694		—
Derivative liability contract		86		—		—		86

The following table reconciles the beginning and ending balances of the derivative liability contract measured at fair value on a recurring basis using significant unobservable (Level 3) inputs during the six months ended June 30, 2011 and 2010:

For the Six Months Ended June 30,	2011			2010
Balance, beginning of period	$	86		$	245
Accruals during the period		164			—
Cash payments during the period		(128	)		(118	)
Balance, end of period	$	122		$	127

The following methods were used to estimate the fair value of each class of financial instrument above:

Investment Securities Available-for-Sale. The Company obtains fair value measurements for investment securities available-for-sale from an independent pricing service. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the investment’s terms and conditions, among other things.

Mortgage Servicing Rights. Mortgage servicing rights are initially recorded at fair value based on comparable market quotes and are amortized in proportion to and over the period of estimated net servicing income. Mortgage servicing rights are evaluated quarterly for impairment using an independent valuation service. The valuation service utilizes discounted cash flow modeling techniques, which consider observable data that includes market consensus prepayment speeds and the predominant risk characteristics of the underlying loans including loan type, note rate and loan term. Management believes the significant inputs utilized in the valuation model are observable in the market.

Derivative Liability Contract. In conjunction with the sale of all of its Class B shares of Visa, Inc. (“Visa”) common stock in 2009, the Company entered into a derivative liability contract with the purchaser whereby the Company will make or receive cash payments based on subsequent changes in the conversion rate of the Class B shares into Class A shares of Visa. The conversion rate is dependent upon the resolution of certain litigation involving Visa U.S.A. Inc. card association or its affiliates. The value of the derivative liability contract is estimated based on the Company’s expectations regarding the ultimate resolution of that litigation, which involves a high degree of judgment and subjectivity. On April 6, 2011, Visa disclosed it had provided additional funding to its litigation escrow account thereby reducing the conversion rate of the Class B shares into Class A shares. During the three months ended June 30, 2011, the Company made cash payments to the purchaser of $102 due to changes in conversion rates and $26 to extend the derivative liability contract until all litigation is settled. In addition, during 2011 the Company revised its estimate of Visa’s future litigation funding and increased its derivative liability contract by $164.

Additionally, from time to time, certain assets are measured at fair value on a non-recurring basis. Adjustments to fair value generally result from the application of lower-of-cost-or-market accounting or write-downs of individual assets due to impairment.

The following table presents information about the Company’s assets and liabilities measured at fair value on a non-recurring basis.

	Fair Value Measurements at Reporting Date Using
			Quoted Prices		Significant
			in Active		Other		Significant
			Markets for		Observable		Unobservable
			Identical Assets		Inputs		Inputs
As of June 30, 2011	Total		(Level 1)		(Level 2)		(Level 3)
Impaired loans	$	119,940	$	—	$	—	$	119,940
Other real estate owned		18,648		—		—		18,648

	Fair Value Measurements at Reporting Date Using
			Quoted Prices		Significant
			in Active		Other		Significant
			Markets for		Observable		Unobservable
			Identical Assets		Inputs		Inputs
As of December 31, 2010	Total		(Level 1)		(Level 2)		(Level 3)
Impaired loans	$	97,574	$	—	$	—	$	97,574
Other real estate owned		23,727		—		—		23,727

Impaired Loans. Certain impaired loans are reported at the fair value of the underlying collateral if repayment is expected solely from collateral. The impaired loans are reported at fair value through specific valuation allowance allocations. In addition, when it is determined that the fair value of an impaired loan is less than the recorded investment in the loan, the carrying value of the loan is adjusted to fair value through a charge to the allowance for loan losses. Collateral values are estimated using inputs based upon observable market data and customized discounting criteria.

OREO. The fair values of OREO are determined by independent appraisals or are estimated using observable market data in combination with customized discounting criteria. Upon initial recognition, write-downs based on the foreclosed asset’s fair value at foreclosure are reported through charges to the allowance for loan losses. Periodically, the fair value of foreclosed assets is remeasured with any subsequent write-downs charged to OREO expense in the period in which they are identified.

Long-lived Assets to be Disposed of by Sale. Long-lived assets to be disposed of by sale are carried at the lower of carrying value or fair value less estimated costs to sell. The fair values of long-lived assets to be disposed of by sale are based upon observable market data and customized discounting criteria. As of June 30, 2011 and December 31, 2010, the Company had one long-lived asset to be disposed of by sale carried at its cost of $1,513.

In addition, mortgage loans held for sale are required to be measured at the lower of cost or fair value. The fair value of mortgage loans held for sale is based upon binding contracts or quotes or bids from third party investors. As of June 30, 2011 and December 31, 2010, all mortgage loans held for sale were recorded at cost.

The Company is required to disclose the fair value of financial instruments for which it is practical to estimate fair value. The methodologies for estimating the fair value of financial instruments that are measured at fair value on a recurring or non-recurring basis are discussed above. The methodologies for estimating the fair value of other financial instruments are discussed below. For financial instruments bearing a variable interest rate where no credit risk exists, it is presumed that recorded book values are reasonable estimates of fair value.

Financial Assets. Carrying values of cash, cash equivalents and accrued interest receivable approximate fair values due to the liquid and/or short-term nature of these instruments. Fair values for investment securities held-to-maturity are obtained from an independent pricing service, which considers observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the investment’s terms and conditions, among other things. Fair values of fixed rate loans and variable rate loans that reprice on an infrequent basis are estimated by discounting future cash flows using current interest rates at which similar loans with similar terms would be made to borrowers of similar credit quality. Carrying values of variable rate loans that reprice frequently, and with no change in credit risk, approximate the fair values of these instruments.

Financial Liabilities. The fair values of demand deposits, savings accounts, securities sold under repurchase agreements and accrued interest payable are the amounts payable on demand at the reporting date. The fair values of fixed-maturity certificates of deposit are estimated using external market rates currently offered for deposits with similar remaining maturities. The carrying values of the interest bearing demand notes to the United States Treasury are deemed an approximation of fair values due to the frequent repayment and repricing at market rates. The fair value of the derivative liability contract was estimated by discounting cash flows using assumptions regarding the expected outcome of related litigation. The floating rate term notes, floating rate subordinated debentures, floating rate subordinated term loan and unsecured demand notes bear interest at floating market rates and, as such, carrying amounts are deemed to approximate fair values. The fair values of notes payable to the FHLB, fixed rate subordinated term debt and capital lease obligation are estimated by discounting future cash flows using current rates for advances with similar characteristics.

Commitments to Extend Credit and Standby Letters of Credit. The fair value of commitments to extend credit and standby letters of credit, based on fees currently charged to enter into similar agreements, is not significant.

A summary of the estimated fair values of financial instruments follows:

	June 30, 2011				December 31, 2010
	Carrying		Estimated		Carrying		Estimated
	Amount		Fair Value		Amount		Fair Value
Financial assets:
Cash and cash equivalents	$	415,491	$	415,491	$	685,618	$	685,618
Investment securities available-for-sale		1,873,864		1,873,864		1,786,335		1,786,335
Investment securities held-to-maturity		148,865		153,448		147,068		146,508
Net loans		4,156,681		4,141,877		4,247,429		4,222,984
Accrued interest receivable		33,588		33,588		33,628		33,628
Mortgage servicing rights, net		13,218		14,607		13,191		13,694
Total financial assets	$	6,641,707	$	6,632,875	$	6,913,269	$	6,888,767
Financial liabilities:
Total deposits, excluding time deposits	$	4,046,492	$	4,046,492	$	4,000,468	$	4,000,468
Time deposits		1,748,173		1,758,786		1,925,245		1,936,011
Securities sold under repurchase agreements		435,039		435,039		620,154		620,154
Derivative contract		122		122		86		86
Accrued interest payable		11,712		11,712		13,178		13,178
Other borrowed funds		5,440		5,440		4,991		4,991
Long-term debt		37,480		40,541		37,502		40,031
Subordinated debentures held by subsidiary trusts		123,715		129,094		123,715		128,954
Total financial liabilities	$	6,408,173	$	6,427,226	$	6,725,339	$	6,743,873